Lennox® ML180

Standard-Efficiency Gas Furnace

Lennox Furnace ML180
Heating Savings in Ohio
60 AFUE vs. 80 AFUE
Saved Per Year
5 Year Savings $3,091


Series Merit Series
Efficiency Rating (AFUE) 80
Energy Star® Energy Star SymbolENERGY STAR® Qualified
Warranty 20-Year Limited Warranty on Heat Exchanger. 5-Year Limited Warranty on covered components. This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration.



Comfort and savings in one

An AFUE of 80% means 80 cents of every dollar spent on gas goes directly toward heating your home. That can mean potential savings of hundreds of dollars per year when compared to an older furnace.

A solid, reliable performer

From its heavy-gauge steel cabinet and aluminized steel heat exchanger to its sealed blower compartment, the ML180 is built to deliver reliable comfort, year after year.

Dual-fuel operation offers greater efficiency

When the ML180 is paired with a Lennox® heat pump, it creates a system that can automatically alternate between electricity and gas to keep you warm. So you’re always using the most energy-efficient way to keep comfortable.